Yamanaka has sat atop the bantamweight rankings for some time but has looked vulnerable in his last two outings. Prior to beating Solis, Shinsuke squeezed past Anselmo Moreno on a contentious split decision.

Ganigan Lopez shakes things up upsetting WBC champion Yu Kimura. Lopez outpointed Kimura to take his belt and No 2 spot in the rankings. That means Jesse Espinas (previously at 10th) moves out of the ratings and everyone else drops down a space.